Couple of things.

Quadra is discontinued... unless you're looking for a used Quadra, Quadrax is the new version (tons of added functionality, too).

Turing Machine is terrific... but Mutable Instruments' Marbles is essentially an expanded Turing Machine with added functionality. It's really terrific, and I'd suggest using it instead of the TM and expanders.

You don't have a filter in either version... that seems like a serious omission, especially given your oscillator choice.
-- Shakespeare

Good call on the Quadra! Not intentional.

I had a lot of fun with marbles in VCV, but my only concern is that it doesn’t have a whole ton of outputs vs the Turing expansion. Easily remedied by pairing with a small sequential sequencer? Or maybe I really don’t need that many random sources.

Good catch re: filter! Forbidden planet seems like it might be my vibe.